Home / 212,584,821.28-318,877,236.02-51,026,757.28

Finding the Fourth Proportional to 212,584,821.28, 318,877,236.02 and 51,026,757.28

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Solution

The fourth proportional to 212,584,821.28, 318,877,236.02 and 51,026,757.28 is: 76,540,136.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,584,821.28 : 318,877,236.02 = 51,026,757.28 : x
  2. Step 2: Convert to fraction form
    212,584,821.28/318,877,236.02 = 51,026,757.28/x
  3. Step 3: Cross multiply
    212,584,821.28x = 318,877,236.02 × 51,026,757.28
  4. Step 4: Simplify right side
    212,584,821.28x = 16,271,271,325,035,976
  5. Step 5: Solve for x
    x = 16,271,271,325,035,976/212,584,821.28
  6. Step 6: Final answer
    x = 76,540,136.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.